eternal_sunshine

Q: iOS devices causing high ping on internet connection

  Hi guys,

     I've been having this problem for the past two months or so. Whenever anybody in my household connects their iPhone4/4s/5 device to my WiFi network, I get insanely high ping spikes for a minute or two (sometimes it'll last as long as 10mins). It seems like only iOS devices seem to cause this problem, so far.

For example, this just happened a few minutes ago. I'm at home using a wired connection, my brother comes home, his iPhone connects to our WiFi network, and all of a sudden ping spikes:

Tracing route to www.google.ca [173.194.43.120]
over a maximum of 30 hops:

1    <1 ms    <1 ms    <1 ms  192.168.1.1
2  1424 ms  1440 ms  1467 ms  10.125.23.1
3  1538 ms  1544 ms  1327 ms  24.156.137.233
4  1448 ms  1457 ms  1099 ms  24.156.146.1
5   696 ms   803 ms   943 ms  69.196.136.68
6   911 ms  1014 ms  1168 ms  72.14.212.134
7  1113 ms  1124 ms  1045 ms  209.85.255.232
8  1216 ms  1107 ms  1089 ms  72.14.239.73
9  1336 ms  2964 ms  1522 ms  173.194.43.120

Trace complete.

Pings will then go back down, usually after a few minutes (5-10ish, sometimes longer).

Tracing route to www.google.ca [173.194.43.120]
over a maximum of 30 hops:

1    <1 ms    <1 ms    <1 ms  192.168.1.1
2     6 ms     7 ms     7 ms  10.125.23.1
3    13 ms     7 ms    16 ms  24.156.137.233
4     9 ms    12 ms    10 ms  24.156.146.1
5    10 ms     8 ms     9 ms  69.196.136.68
6    13 ms     9 ms    15 ms  72.14.212.134
7    19 ms    22 ms    12 ms  209.85.255.232
8     9 ms    14 ms     9 ms  72.14.239.73
9    21 ms    10 ms     8 ms  173.194.43.120

Trace complete.

If I block their devices from connecting to WiFi (using the MAC filtering), this issue never occurs. I tested it by blocking their devices mid-spike, and pings will immediately drop to normal levels.

Any ideas what's causing this? I'm pretty sure there's nothing wrong with my connection from the ISP or my networking hardware. Is it some of their apps downloading a bunch of stuff when entering WiFi range or something? Could it be the way I have WiFi set up on my router (ASUS RT-N66U)?

I'm pretty certain it's their iOS devices causing the problem.

Thanks for your assistance.

iPhone 4S

Posted on Sep 16, 2013 3:00 PM

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Q: iOS devices causing high ping on internet connection

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  • Helpful answers

  • by LennartRouw,

    LennartRouw LennartRouw Dec 12, 2013 7:54 AM in response to eternal_sunshine
    Level 1 (0 points)
    Dec 12, 2013 7:54 AM in response to eternal_sunshine

    Hello,

     

    I have this same problem at my office.

    My users started complaining about slow internet. Everyday around 3pm.

    After checking, internet was indeed very slow. And pinging to google.com caused pings of ± 2000 ms.

     

    After some while (totally random) I discovered that my iPhone 4s was causing this.

    Everyday around 3pm I connected my iPhone to my iMac because the battery was getting low.

    Now I just tested, and it's not about the connection from iPhone to iMac.

    The problem is iPhone being on charger while in stand-by mode.

     

    I just did some "extensive" testing.

    Whenever the iPhone would be on charger and in stand-by mode, after exactly 2 minutes my ping would raise up to between 1000 and 2000 ms. Staying in stand-by mode, this would continue at least 10 minutes.

    As soon as I would get the iPhone out of stand-by mode, the ping would immediately drop again to the normal 22 ms. While in "normal" working mode, the ping would remain 22 ms. Putting the iPhone in stand-by again...you can guess it, exactly 2 minutes later the ping would immensely increase again. I have repeated this tests 20 times, and everytime the same result. No difference if the iPhone would be charged through the iMac, or just at wall AC.

     

    So something in the iPhone is causing it to create very high ping while in stand-by mode.

     

    EDIT: As stated, the combination that is causing high ping is stand-by mode + being charged.

    I have also tested while being on same Wi-Fi in stand-by mode, but not being charged, and this causes no abnormal behavior.

     

     

    Hopefully someone knows what could be causing this?

    If anyone needs more information or testing, please let me know.

     

    Thanks in advance for anyone who could help out here.

     

    Message was edited by: LennartRouw

  • by lwgnlSeVeN,

    lwgnlSeVeN lwgnlSeVeN Feb 23, 2014 7:26 AM in response to LennartRouw
    Level 1 (0 points)
    Feb 23, 2014 7:26 AM in response to LennartRouw

    I am glad that I found this information. Over 1 year ago, last christmas, we got 2 - Ipod touch 5 gen and for over 1 year, I have been experiencing lag spikes 1000ms+. I've called the cable company, ISP provider, nobody has any idea what is causing it. I'm a gamer and having these spikes all the time, at random times during the day, while playing games, is very annoying. It's been over a year that I have been dealing with it. Over the past few months, I too have noticed about 2 minutes after putting the ipod on charger, that it spikes and stays there for a few minutes, sometimes up to 10 minutes. The second that I unplug it, the ping returns to normal (22 ms)

     

    The times that I'm not charging mine, and the ping spikes, perhaps the other ipod in the house has been connected to charger and left in stand by mode, also causing the same thing. I'm going to try charging only overnight when sleeping to see if the ping spiking goes away. I never experienced ANY ping spikes prior to getting the ipod touch 5, but ever since getting them, they have been a major pain with latency.

  • by Makuzi,

    Makuzi Makuzi May 13, 2014 9:40 AM in response to eternal_sunshine
    Level 1 (0 points)
    May 13, 2014 9:40 AM in response to eternal_sunshine

    BUMP for any information to fix this I am having the same issue

  • by david Jordy,

    david Jordy david Jordy Jul 30, 2014 10:10 PM in response to eternal_sunshine
    Level 1 (0 points)
    Jul 30, 2014 10:10 PM in response to eternal_sunshine

    OMG, i got the same problem, how to fix the problem?

  • by Shokyu,

    Shokyu Shokyu Aug 5, 2014 6:55 AM in response to eternal_sunshine
    Level 1 (0 points)
    Aug 5, 2014 6:55 AM in response to eternal_sunshine

    It's because you have something like wifi sync, or wifi sync to iCloud or something similar enabled.

     

    This means the device syncs/backsup to the cloud or whatever when connected to a power source. Just disable the specific setting and you're done.

     

    When it's done with syncing your ping is back to normal... the 10-15 minute timeframe... ;-)

  • by amir-ak47,

    amir-ak47 amir-ak47 Sep 18, 2016 5:26 PM in response to eternal_sunshine
    Level 1 (4 points)
    Sep 18, 2016 5:26 PM in response to eternal_sunshine

    Hello

    Yes it happens only when you pluged into charger and left it on standby else there is no  problem only way to stop it dont connect to wifi when your iphone is on charger i hope it helps